<!DOCTYPE html>
<html>
<head>
  <title></title>
</head>
<body>

<script type="text/javascript">
  let x = (x => (x => x * 9)(x) + 3)(5)
  let y = y => (y => y * 9)(y) + 3
  console.log(x)
  console.log(y(5))
</script>
</body>
</html>